[RTL] Breadcrumb separator is in the wrong place

_Originally posted by @mboukhalfa in https://github.com/kubernetes/website/issues/22730#issuecomment-2114542664_

> ...  issue with current page path, the slash is not in the correct place:
>
> > <img width="594" alt="image" src="https://github.com/google/docsy/assets/4140793/f8099b3b-dce0-4787-be2f-8f70d85797aa">